One of the participants, Lynn, was very familiar with the lab and had actually submitted it as one of her “favorite labs” to share, not knowing that I was going to present. Something she said, really captures this experience and value of this lab. She said that one of her students (one that might not have demonstrated a lot of previous interest in biology) completed an investigation of his own question about photosynthesis and reported on it in a science fair type of format. Apparently he described the floating disk technique to his judges as

“You can see photosynthesis happening.”

He’s right and that’s what makes this technique such a powerful tool for learning about photosynthesis and doing science. Thanks for sharing, Lynn.